Cooling device for heat-radiators.



No. 663,85l PatentedDec. I8, |900.

F. C. BLAKE. COLING DEVICE .FOR HEAT RADIATURS.

(Application med my 2s, 1900. (No Modal.)

m: NoRnls Evans co., Pnm'oumo.. wnsnmmou. Iny c.

EEANCis CLAUDE BLAKE, oELoNDoN, ENGLAND.

COOLING DEVICE FOR HEAT=RADIATORS.

SPECIFICATION forming part of Letters Patent No. 663,851, dated December 18, 190C).

Application led May Z3, 1900. Serial No. 17,703. (No model.)

To a/ZZ whom t muy concern:

Be it known that I, FRANCIS CLAUDE BLAKE, engineer, of Raveuscourt Works, Hammersmith, London,West-, England, have invented certain new and useful Improvements in Cooling Devices for Heat-Radiators, (in respect of which I have applied for Letters Patent in Great Britain, Provisional Application No. 22,176, dated November 6, 1899; in France, dated February 12, 1900; in Belgium, dated February 13, 1900, and in Ger' many, dated February 24:, 1900,) of which .the following is a full, clear, and exact description.

This invention relates to the surface apparatus of cooling devices for gases, vapor, and liquids and of heat-radiators and the like.

My invention consists, essentially, in the use for the purposes indicated of crimped, sinuous, or undulating copper or other metallic gauze soldered, riveted, or otherwise secured to the surface of these apparatus.

Figure 1 of the accompanying diagrammatic drawingsindicates in side elevation a method of carrying out my invention as applied to a dat pipe. Fig. 2 is a similar View of a modified form. Fig. 3 is a cross-section of a pipe fitted with the undulated gauze. Fig. 4 is a side elevation of the cylindrical pipe shown in Fig. 3.

In carrying out my invention and referring to Fig. l, I take a flat pipe d-a g., of copper and of rectangular section-and solder an undulated or ribbed sheet b of copper gauze to top and bottom (the larger sides) of the same. Several pipes a may be superposed and suit ably connected by U or other joints, or a single pipe of considerable length--tWenty-ve feet, for instance-may be bent to the desired shape and the sheet or sheets of copper gauze soldered or otherwise securely attached thereto. The pipes may be arranged horizontally, vertically, or otherwise and may be of any length. The arch or tunnel c, formed bythe undulation of the gauze h,nay be of any desired pitch and section and preferably passes transversely across the pipe. The arch c may, however, if so desired, run longitudinally with the pipe. I prefer to arrange the arch c transversely in the case of a fiat pipe. The surrounding air, which receives and diffuses the heat from the fluid inclosed in the pipe c, reaches the surface of the latter through the mesh of the raised gauze h and through the tunnels c, formed thereby. As a suitable gage of gauze I may mention that I regard from eight to twenty per inch linear very convenient sizes for the radiators or cooling apparatus of `motor-cars; but I may use any other gage which may be suited to my object.

In Fig. 1 the rise and fall of the sinuous gauze?? at t-op and bottom of the pipe is sym xnetrical, and on Fig. 2 I have shown them parallel in hit-and-miss fashion; but the undulations may be arranged in any other suitable manner.

There cylindrical pipes d are used, I may solder the undulated gauze to the pipe longitudinally, as shown in crosssection on Fig. 3. The gauze need not necessarily be fashioned to a star shape and the number of crimpings or undulations may be lessened or increased,

desired. For a cylindrical pipe of threefourths of an inch in diameter I have found that a mesh of one-tenth of an inch gives very good results.

I .find that soldering the undulated metallic gauze to the pipe or surface is usually sufficient; but I may secure it thereto by riveting, closely binding with wire, or in any other suitable and convenient manner.

I have referred to the undulated gauze throughout this description as being made of copper wire. Instead of copper aluminium or other suitable metal or metal alloy may be employed. For instance, the bronze metals and various white metals may be used. In the case of aluminium it may be plated with copper, so that it can be soldered to the pipes, dro., or, if used naked, it will be riveted, wirebound, or otherwise secured to the pipes or surface.

The present invention may be applied to the surface of any pipe or apparatus containing heated liquid, hot air, or other fluid from which it is desired to abstract heat.

Having now described my invention, What I claim as new, and desire t0 secure by Letters of such undulations are rendered integral Patent, iszwith the surface. 1o

Aheat-diffusing device for the external sur- In witness whereof I have hereunto set my face of pipes containing heated fluids, and of hand in presence of two witnesses. 5 heat-radiators and the like, consisting of me- FRANCIS CLAUDE BLAKE.

tallic wire-gauze which is intimately secured Witnesses: to such surfaces, in undulated sheets by VICTOR F. FEENY,

means of a fillet of solder, whereby the bases W. M. HARRIS. 

